“Bending” and beyond: Better estimates of quantitative genetic parameters?

2019 ◽  
Vol 136 (4) ◽  
pp. 243-251 ◽  
Author(s):  
Karin Meyer
Keyword(s):  
Genetic Parameters ◽  
Quantitative Genetic ◽  
Quantitative Genetic Parameters

scholarly journals EVOLUTIONARY POTENTIAL OF A LARGE MARINE VERTEBRATE: QUANTITATIVE GENETIC PARAMETERS IN A WILD POPULATION

Evolution ◽  
2009 ◽  
Vol 63 (4) ◽  
pp. 1051-1067 ◽  
Author(s):  
Joseph D. DiBattista ◽  
Kevin A. Feldheim ◽  
Dany Garant ◽  
Samuel H. Gruber ◽  
Andrew P. Hendry
Keyword(s):  
Genetic Parameters ◽  
Wild Population ◽  
Evolutionary Potential ◽  
Quantitative Genetic ◽  
Quantitative Genetic Parameters

Estimation of Quantitative Genetic Parameters for Outcrossing-Related Traits in Barley

Crop Science ◽  
2005 ◽  
Vol 45 (1) ◽  
pp. cropsci2005.0098 ◽  
Author(s):  
Adel H. Abdel-Ghani ◽  
Heiko K. Parzies ◽  
Salvatore Ceccarelli ◽  
Stefania Grando ◽  
Hartwig H. Geiger
Keyword(s):  
Genetic Parameters ◽  
Quantitative Genetic ◽  
Quantitative Genetic Parameters

Estimating Quantitative Genetic Parameters Using Sibships Reconstructed From Marker Data

Genetics ◽  
2000 ◽  
Vol 155 (4) ◽  
pp. 1961-1972 ◽  
Author(s):  
Stuart C Thomas ◽  
William G Hill
Keyword(s):  
Prior Knowledge ◽  
Genetic Parameters ◽  
Allele Frequencies ◽  
Parameter Estimates ◽  
Monte Carlo Techniques ◽  
Quantitative Genetic ◽  
Downward Bias ◽  
Mean Square Errors ◽  
Sibship Reconstruction ◽  
Quantitative Genetic Parameters

Abstract Previous techniques for estimating quantitative genetic parameters, such as heritability in populations where exact relationships are unknown but are instead inferred from marker genotypes, have used data from individuals on a pairwise level only. At this level, families are weighted according to the number of pairs within which each family appears, hence by size rather than information content, and information from multiple relationships is lost. Estimates of parameters are therefore not the most efficient achievable. Here, Markov chain Monte Carlo techniques have been used to partition the population into complete sibships, including, if known, prior knowledge of the distribution of family sizes. These pedigrees have then been used with restricted maximum likelihood under an animal model to estimate quantitative genetic parameters. Simulations to compare the properties of parameter estimates with those of existing techniques indicate that the use of sibship reconstruction is superior to earlier methods, having lower mean square errors and showing nonsignificant downward bias. In addition, sibship reconstruction allows the estimation of population allele frequencies that account for the relationships within the sample, so prior knowledge of allele frequencies need not be assumed. Extensions to these techniques allow reconstruction of half sibships when some or all of the maternal genotypes are known.

scholarly journals Quantitative-genetic parameters of sorghum growth under striga infestation in Mali and Kenya

2001 ◽  
Vol 120 (1) ◽  
pp. 49-56 ◽  
Author(s):  
B. I. G. Haussmann ◽  
D. E. Hess ◽  
B. V. S. Reddy ◽  
S. Z. Mukuru ◽  
M. Kayentao ◽  
...  
Keyword(s):  
Genetic Parameters ◽  
Quantitative Genetic ◽  
Quantitative Genetic Parameters

Big and beautiful? Quantitative genetic parameters for appearance of large rainbow trout

2003 ◽  
Vol 62 (3) ◽  
pp. 610-622 ◽  
Author(s):  
A. Kause ◽  
O. Ritola ◽  
T. Paananen ◽  
U. Eskelinen ◽  
E. Mäntysaari
Keyword(s):  
Rainbow Trout ◽  
Genetic Parameters ◽  
Quantitative Genetic ◽  
Quantitative Genetic Parameters
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